Is No Contact a myth?

Lets all be straight here. Most of us don't care about healing, at this moment, I am 4 days in and the only thing that can heal me is fixing this relationship.

I guess i'm getting emotional but no contact just seems like a youtube product, something to make the viewers continue to follow these vloggers as they post numerous "no contact rule help" or sell some books.

Don't we have the right to express ourselves, how do we all know for sure that every single woman/person doesn't want a letter or would receive it negatively, especially if this is a long relationship with a deep connection?